Improvement in lamps



A. J. RITTER.

Lantern.

Patented May 3], 1864.

1 I invert? g fiw mza lamps and producing draft for the same;

UNITED STATES PATENT Urricn.

ANDRE J. BITTER, ()F RAHYVAY, NEW JERSEY.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 12,998, dated May 31,1864; antcdated March 23, 1864.

To all whom it may concern:

Be it known that I, ANDREW J. RITTER, of the city of Rahway, county ofUnion, and State of New Jersey, have invented a new and improved mode oflighting coal oil and I do hereby declare that the following is a fulland exact description thereof, reference being had to the accompanyingdrawings, figures and letters of reference marked thereon.

The nature of my invention consists in providing a coated lamp with aperpendicular vented tube or cylinder, which is incased within a shortchimney or globe, the globe being raised or lowered by a slide whichencircles the cylinder, the whole being arranged for the purpose oflighting the lamp without taking off the chimney or globe, and forproducing a strong draft with a short chimney or globe, thereby doingaway with the long chimney heretofore used.

To enable others skilled in the art of using lamps, and to make and usemy improved lamp, I will describe it in the following spot-1 ficationand drawings annexed thereto, which form a part of the same, referencebeing had to the figures and letters marked thereon.

The same letters and figures refer to the same parts in all of thedrawings.

\Vith the usual fixtures for burning coil-o 1 it is very necessary, whenlighting the lamp, to remove the chimney, and when the lamp is lightedto replace the chimney again. It is also necessary to have a longchimney to create sufficient draft to bring out a bright light; andhence the chimneys are often broken by heat or otherwise. Now, theobject of my invention is simply to provide a more convenient method oflighting these lamps, and at tLe same time produce a bright light andsave breaking of chimneys, which is incident to old devices.

Instead of using the long chimney, as above described, I use a shortchimney or globe, in combination with other parts, in the followingmanner: 1 take, in place of the part which is generally used for thestem or pedestal of what is termed a high lamp, and form, in place ofit, a tube or cylinder, as shown at B, Figure 2. This tube or cylinder Bis constructed of sheet metalsay about one inch in diameter and threeinches long. At the lower end of the cylinder B, l perforate itsnflicientto admit the air to pass in freely above the bottom piece H,as at I) Z), Fig. 1, and by this mode of passing the air in through thecylinder I get a good portion of my draft to the flame. To get my wickand flame to the top of the cylinder B, I form a tube of sufiicientlength to reach to the top, as shown at E, Fig.1. The tube E is formedthe same as other flat tubes, except being a little larger at thebottom, making it of a tapering form, as shown from c y e, so that thewick is allowed to remain loose and free from pressure within the tube,allowing the oil to ascend freely to the flame, which passes through thecone at the top in the usual manner. The spindle and spurwheels F ff,for raising and lowering the wick, and the tube E and bottom part, H,are all fitted and fasteiud to the bottom of the cylinder B in the usualmanner, as shown at E, F, and H, Fig. 1. I now construct out of suitablemetal the slide 0, as shown at Fig. 5, and place it upon the cylinder B,as at Fig. 2, the slide 0 being so constructed with prongs J J J J, orotherwise, that it will hold the chimney D securely, as at Figs. 3, 6,and 7. I then place on each side of the cylinder B, and directlyopposite to each other, wire springs formed similar to umbrella-handlesprings, as at I I, Fig. 2, and the springs I I, being so arrangedthatwhen the slide 0 is pushed up and over them they will catch and holdthe chimney I) up in its proper place, as at Figs. 3 and 7. Fig. 3 showsthe whole arrangement, which can be attached to any lamp by means of thescrew part II, which makes the arrangement complete for operations, asat Figs. 6 and 7. Now, when the lamp is to be lighted it is onlynecessary to press in the springs I I and lower the chimney or globe l),as at Fig. 6. Then raise or lower the wick by the. usual mode, light thewick at the top, as shown at G g, Fig. 6, then raise the slide 0 untilit passes over the springs I I, then the chimney or globe 1) will bebrought to itsproper place, as at Fig. 7. When in this position, thedraft created by the chimney part .D, combined with the draft created bythe cylinder part B, is sufficiently strong to make a brilliant light.

I am aware that there are pirforated and vented cones of various kinds.I do not claim anything of this kind as I use the common cone. I do notclaim any particular mode for raising the wick. Nor do I claim anyparticular substance or dimensions for constructing the partshereinbefore described.

hat I do claim as myinvention, and desire to secure to me by LettersPatent, is-

The operation and combination of the globe or chimney D slide 0,perforated or vented cylinder B, springs I I, and long and tapering tubeE, or their equivalents, for the several purposes herein substantiallyset forth and specified.

ANDRE\V J. BITTER. In presence of J. GARTHWAIT, JonN L. PIERSON.

